This is another basic introduction to Greek mythology that I have been scratching my brain to recall for decades—I still haven't yet located an early 1990s edition to confirm that it is the book I am looking for, but I am 95% certain that it is, as my family still owns three other volumes of his introductions to mythology from the same era.
If this is indeed the book I am recalling, it contains not only retellings of the ancient Greek myths, but key depictions of famous scenes in western art, an incredibly detailed family tree of the Gods (possibly on the endpages), and side commentary on key aspects of ancient Greek history.
I would love to find a copy again to fully confirm and to share with my niblings.